NCAA Rule - been there a long time....
Section 5. Indirect Technical Fouls for Unsportsmanlike Conduct by Followers
Any follower(s) of a team shall be assessed an indirect technical foul for
unsportsmanlike conduct that includes but is not limited to the following:
Art. 4. Disrespectfully addressing an official, which includes the use of
profanity or language that is abusive, vulgar or obscene.
Art. 5. Using electronic transmission to communicate with those in the bench
area or passing knowledge acquired with the use of electronic instruments
(e.g., headsets, cellular telephones, modular telephones, television, radio,
Internet video or visual broadcast) to and from the bench area.
Section 6. Penalty for Unsportsmanlike Conduct by FollowersArt. 1. The penalty for an indirect technical foul assessed to a follower(s)
shall be two free throws awarded to a player of the offended team. The ball
shall be put back in play at the point of interruption.
Art. 2. Indirect technical fouls shall not count toward the team-foul total
nor shall they be charged to any specific team member.